Senior Website Modernization DevelopersModernization Developers
Upgrade your legacy site to a modern, performant web app. Our senior engineers ship in 8-12 weeks with a fixed price.
IRPR builds modern web applications from legacy codebases using React, Next.js, Node.js, TypeScript, and AWS Lambda. We replace outdated frontend frameworks like jQuery or AngularJS with component-based architectures that load faster and scale easier.
Every project ships in 8-12 weeks with a fixed price between $80,000 and $250,000. We build to HIPAA, PCI-DSS, and SOC 2 compliance standards from day one. You get full source code ownership and a 1-year warranty.
Our clients are CTOs at legacy enterprises who need to modernize without downtime, product managers at mid-market companies who want a faster site, startup founders who need to scale their MVP, and digital agencies that white-label our development team.
Types of software we ship.
Legacy to React migration
Replace AngularJS, jQuery, or Backbone frontends with React. Keep existing backend or rebuild with Node.js.
Static site to headless CMS
Migrate static HTML sites to a headless CMS like Contentful or Strapi with Next.js frontend. Non-technical staff can edit content.
Monolith to microservices frontend
Decompose a monolithic Rails or Django frontend into a React SPA with separate API services. Improve deployment speed and scalability.
jQuery to modern JavaScript framework
Rewrite jQuery-heavy sites in React or Vue. Reduce code complexity and improve performance with virtual DOM.
Server-rendered to JAMstack
Move from server-rendered PHP or .NET to JAMstack with Next.js static generation. Host on Netlify or Vercel for global CDN.
Custom admin panel modernization
Replace legacy admin panels built with PHP or ASP.NET with React and Material-UI. Add real-time updates via WebSockets.
Ecommerce platform replatforming
Migrate from Magento or WooCommerce to a headless commerce stack with Next.js and Shopify Storefront API. Faster checkout and better SEO.
Enterprise portal redesign
Modernize 10-year-old Java or .NET portals to React with OAuth2 authentication. Achieve PCI-DSS compliance for financial data.
We build for every business type.
Professional services
Healthcare
Ecommerce
SaaS
Media and publishing
Why senior website modernization developers matter
Your legacy website is costing you money in slow load times, poor SEO, and high maintenance.
A modern website built with React or Next.js loads 2-3x faster than a jQuery or PHP site. Google uses page speed as a ranking factor. Every second of delay reduces conversions by 7%. We have modernized over 200 sites across 50 countries.
Our senior engineers use automated testing (Jest, Cypress) and CI/CD pipelines (GitHub Actions) to ensure zero downtime during migration. We deliver a production-ready site in 12 weeks on average, with 98% on-time track record.
Generic dev shop vs IRPR
Not all development teams deliver the same quality. Here is how IRPR stands apart.
Most agencies bill by the hour, assign junior developers, and hand over code with no documentation. They often miss deadlines and leave you with a half-finished project.
IRPR works differently. We assign senior engineers only, give you a fixed price after a 2-week Roadmap phase, and transfer full code ownership on day one. Every project includes a 1-year warranty.
- Hourly billing with no cap
- Junior developers on your project
- No code ownership until final payment
- Scope creep without change orders
- No compliance documentation
- No post-launch support
- Fixed price after Roadmap phase
- Senior engineers only (10+ years avg)
- Full code ownership from week 1
- Scope locked in Roadmap, changes quoted separately
- HIPAA, PCI-DSS, SOC 2 built in
- 1-year warranty on all code
Our 4-phase modernization process
We follow a repeatable process that guarantees on-time, on-budget delivery.
Every project starts with a 2-week Discovery phase where we audit your existing codebase, performance, and SEO. We then create a detailed Roadmap with fixed price and timeline.
During Build & Migrate, we rewrite the frontend in React or Next.js while keeping your backend running. The final phase deploys the new site with zero downtime and monitors performance.
What ships with every modernization project
You get more than just a new website. Every project includes the following deliverables.
We believe in full transparency. All code, documentation, and infrastructure scripts are yours from day one. No black boxes, no vendor lock-in.
- Source code in your GitHub or GitLab repo
- CI/CD pipeline with GitHub Actions
- Automated tests (Jest for unit, Cypress for E2E)
- Performance audit report (Lighthouse score 90+)
- SEO migration plan with 301 redirects
- Security review (OWASP Top 10)
- Architecture documentation (markdown)
- 1-year bug fix warranty
- Monitoring setup (Sentry, Datadog)
- Deployment runbook for your team
What we ship in this practice.
Legacy ASP.NET site to Next.js for a healthcare provider
Migrated 500+ pages from ASP.NET WebForms to Next.js with a headless CMS. Reduced page load time by 60%. Tech stack: Next.js, Strapi, AWS Lambda, PostgreSQL.
jQuery ecommerce store to React for a fashion brand
Replaced a jQuery-based storefront with React and Redux. Increased conversion rate by 15% due to faster checkout. Tech stack: React, Node.js, Stripe, Shopify API.
Monolithic real estate portal to microservices
Decomposed a Ruby on Rails monolith into a React frontend and Node.js microservices. API response time improved 40%. Tech stack: React, Node.js, Docker, AWS ECS.
Static brochure site to headless CMS for a law firm
Migrated from static HTML to a headless CMS with Next.js. Non-technical staff can now update content in minutes instead of days. Tech stack: Next.js, Contentful, Netlify.
Custom admin panel modernization for a logistics company
Rewrote a legacy PHP admin panel in React with TypeScript. Cut data entry time by 8 hours per week. Tech stack: React, TypeScript, Node.js, PostgreSQL, WebSockets.
Enterprise portal redesign for a financial services firm
Modernized a 10-year-old Java portal to React with OAuth2. Achieved PCI-DSS compliance. Tech stack: React, Spring Boot, Keycloak, AWS.
Why teams hire us.
Fixed price, not hourly
Every project gets a fixed quote after the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges.
Senior engineers only
Our team averages 10+ years of experience. No junior developers. Every line of code is reviewed by a senior architect.
Full code ownership
You own 100% of the source code, design assets, and documentation. We transfer everything to your GitHub or GitLab repo on day one.
Compliance built-in
We build to HIPAA, PCI-DSS, and SOC 2 standards from day one. Audit-ready documentation included.
8-12 week delivery
We ship production-ready MVPs in 8-12 weeks. Our track record shows 98% on-time delivery across 200+ projects.
Post-launch support included
Every project includes a 1-year warranty for bug fixes and critical updates. We also offer ongoing maintenance at a fixed monthly rate.
Idea → Roadmap → Product → Release.
Every engagement runs through the same four-stage pipeline. Predictable by design.
Questions clients ask first.
Related services and industries.
Ready to build? Let's talk.
30-minute discovery call. No deck. We'll tell you honestly what it takes, how long, and how much.